Arduino: 1.8.19 (Linux), Board: "M5PaperS3, Disabled, OPI PSRAM, QIO 80MHz, 16MB (128Mb), Core 1, Core 1, Hardware CDC and JTAG, Enabled, Disabled, Disabled, UART0 / Hardware CDC, 16M Flash (3MB APP/9.9MB FATFS), 240MHz (WiFi), 921600, None, Disabled"

In file included from /home/wsanders/Documents/ArduinoSketchbook/libraries/M5Unified/src/M5Unified.h:5,
                 from /home/wsanders/Documents/ArduinoSketchbook/M5/badgeWX/badgeWX.ino:2:
/home/wsanders/Documents/ArduinoSketchbook/libraries/M5Unified/src/M5Unified.hpp: In member function 'virtual void m5::M5Unified::begin(m5::M5Unified::config_t)':
/home/wsanders/Documents/ArduinoSketchbook/libraries/M5Unified/src/M5Unified.hpp:326:62: error: no matching function for call to 'm5gfx::M5GFX::init_without_reset(bool&)'
       bool res = Display.init_without_reset(cfg.clear_display);
                                                              ^
In file included from /home/wsanders/Documents/ArduinoSketchbook/libraries/M5GFX/src/M5GFX.h:22,
                 from /home/wsanders/Documents/ArduinoSketchbook/libraries/M5Unified/src/M5Unified.hpp:19,
                 from /home/wsanders/Documents/ArduinoSketchbook/libraries/M5Unified/src/M5Unified.h:5,
                 from /home/wsanders/Documents/ArduinoSketchbook/M5/badgeWX/badgeWX.ino:2:
/home/wsanders/Documents/ArduinoSketchbook/libraries/M5GFX/src/lgfx/v1/LGFXBase.hpp:1411:10: note: candidate: 'bool lgfx::v1::LGFX_Device::init_without_reset()'
     bool init_without_reset(void) { return init_impl(false, false); };
          ^~~~~~~~~~~~~~~~~~
/home/wsanders/Documents/ArduinoSketchbook/libraries/M5GFX/src/lgfx/v1/LGFXBase.hpp:1411:10: note:   candidate expects 0 arguments, 1 provided
Multiple libraries were found for "WiFi.h"
 Used: /home/wsanders/.arduino15/packages/m5stack/hardware/esp32/2.1.3/libraries/WiFi
 Not used: /home/wsanders/arduino-1.8.19-NOSAVE/libraries/WiFi
exit status 1

With 0.2.2 I needed to use these includes, in this order:

#include <epdiy.h>
#include <M5Unified.h>

Maybe this has changed? Here's some sample code, it compiles with 0.2.2:

#include <epdiy.h>
#include <M5Unified.h>
static constexpr const char* state_name[16] =
{ "none"
    , "touch"
    , "touch_end"
    , "touch_begin"
    , "___"
    , "hold"
    , "hold_end"
    , "hold_begin"
    , "___"
    , "flick"
    , "flick_end"
    , "flick_begin"
    , "___"
    , "drag"
    , "drag_end"
    , "drag_begin"
};

void setup(void)
{ 
  Serial.begin(115200);
  M5.begin();
  
  M5.Display.setRotation(M5.Display.getRotation() ^ 2);
  M5.Display.setEpdMode(epd_mode_t::epd_fastest);
  M5.Display.startWrite();
  M5.Display.setTextSize(2);
}

void loop(void)
{ 
  // too slow! M5.delay(10);
  M5.delay(2);
  M5.update();
  
  // Count is going to be the bumber of "fingers" detected: 0, 1, max 2
  // So, can be ignored for simple button press
  // Always seems to be 0 inside for loop?
  // auto count = M5.Touch.getCount();
  auto t = M5.Touch.getDetail(0);
  if (t.state > 0) { 
  // State is state of the entire touch screen
  // All we care about is t.wasFlicked
      Serial.print(t.state);
      Serial.println(state_name[t.state]);
  }
  M5.Display.display();
}